单项选择题
We are going to have a singing party tonight. Would you like to join us?（）
A.I'm afraid not, because I have to go to an important meeting. B.Of course not. I have no idea. C.No, I can't. D.That's all set.
单项选择题 We are glad that we finally managed to get into contact（）them.
单项选择题 We are disappointed to find that the quality of the products here（）very poor.
单项选择题 Unfortunately, his father（）in the traffic accident yesterday.
